stl and obj import export python broken
thank you metaphor_set and sambler!

a combination all of your suggestions helped. I had tried to download a theme, and I guess it didn't want to work right. Anyhow, I deleted my pycache, restarted, and made sure to select Selection Only on export, and change the type from Batch to Object. After that, things started working again. 

thanks again! I hope this helps somebody else!